C 跨生物·食物
Food is very important for all living things. It helps our body grow and keeps all parts of our body working well.
We need to eat healthy food every day. We have three main meals a day: breakfast, lunch and dinner. Each meal gives us energy for study and sport.
Different foods give us different kinds of nutrition. Rice and noodles are main food. They give us much energy. Vegetables and fruit are rich in vitamins. Vitamins help our body fight sickness and keep us healthy. Eggs, milk and fish help us grow tall and strong.
Water is necessary for our life. About 70% of our body is made up of water. It helps carry nutrition to every part of our body.
Fast food and too much sweet food are unhealthy. They cannot give us enough good nutrition. They are bad for our body and make us get fat easily.
Healthy eating is very important. It helps our body grow well and work well in our life.
(
A. Make toys.
B. Grow and keep bodies working.
C. Clean rooms.
D. Draw pictures.
(
A. Hamburgers.
B. Vegetables.
C. Ice cream.
D. Candy.
(
A. About 60%.
B. About 70%.
C. About 80%.
D. About 90%.
(
A. Because they give too much nutrition.
B. Because they make us strong.
C. Because they can't give enough good nutrition.
D. Because they help us grow fast.
Food is very important for all living things. It helps our body grow and keeps all parts of our body working well.
We need to eat healthy food every day. We have three main meals a day: breakfast, lunch and dinner. Each meal gives us energy for study and sport.
Different foods give us different kinds of nutrition. Rice and noodles are main food. They give us much energy. Vegetables and fruit are rich in vitamins. Vitamins help our body fight sickness and keep us healthy. Eggs, milk and fish help us grow tall and strong.
Water is necessary for our life. About 70% of our body is made up of water. It helps carry nutrition to every part of our body.
Fast food and too much sweet food are unhealthy. They cannot give us enough good nutrition. They are bad for our body and make us get fat easily.
Healthy eating is very important. It helps our body grow well and work well in our life.
(
B
)8. What does food help living things do?A. Make toys.
B. Grow and keep bodies working.
C. Clean rooms.
D. Draw pictures.
(
B
)9. Which food is rich in vitamins?A. Hamburgers.
B. Vegetables.
C. Ice cream.
D. Candy.
(
B
)10. What percentage of our body is made up of water?A. About 60%.
B. About 70%.
C. About 80%.
D. About 90%.
(
C
)11. Why are fast food and sweet food bad for us?A. Because they give too much nutrition.
B. Because they make us strong.
C. Because they can't give enough good nutrition.
D. Because they help us grow fast.
答案：8. B 【点拨】根据第一段可知，食物能帮助生物生长、维持身体正常运作。故选 B。
9. B 【点拨】根据原文中“Vegetables and fruit are rich in vitamins.”可知，蔬菜和水果富含维生素。故选 B。
10. B 【点拨】根据原文中“About 70% of our body is made up of water.”可知，人体约 70%由水构成。故选 B。
11. C 【点拨】根据原文中“Fast food and too much sweet food are unhealthy. They cannot give us enough good nutrition.”可知，垃圾食品和甜食无法提供充足的优质营养，对人体有害。故选 C。
9. B 【点拨】根据原文中“Vegetables and fruit are rich in vitamins.”可知，蔬菜和水果富含维生素。故选 B。
10. B 【点拨】根据原文中“About 70% of our body is made up of water.”可知，人体约 70%由水构成。故选 B。
11. C 【点拨】根据原文中“Fast food and too much sweet food are unhealthy. They cannot give us enough good nutrition.”可知，垃圾食品和甜食无法提供充足的优质营养，对人体有害。故选 C。